Castiel could tell from the look on Hiccup's face that whatever he was expecting, he was not expecting to see her there. She calmed a little when he placed his hands on her shoulders, telling her they would get Aurora and the other dragons back from Drago but it wasn't by much. Hr friend was still at risk of being hurt or worse and that worry would not subside completely until she had her friend by her side again. She watched as Toothless nudged against Hiccup before Hiccup reassured him as well and went upstairs. It was another moment later that the woman who Castiel assumed might be Hiccup's mother, said she was going to go get her dragon, though she didn't even get a chance to leave before Hiccup was coming down the stairs, wearing his armor. 

There was a small exchange of words between mother and son, mostly them deciding who would go and who would stay to watch over the village. In the end it was decided that Hiccup would go and his mother would stay to watch over the village in his absence. She walked outside after Hiccup and they came to a small shed, Hiccup getting Toothless ready for the flight as he spoke to her, saying they would go back to the cave with a tracking lass dragon, and that after the dragon had the scent they would go after the Bewilderbeast. By Bewilderbeast, she assumed he meant the giant dragon that had taken control of Aurora. Fighting him worried Castiel, considering it was lightly they would have to fight Aurora before they could even attempt to fight the giant dragon. The thought of fighting her friend was not something she liked, but knew if they wanted to free her then there was no way around it.

She nodded when he asked if he could count her in, "Of course. Aurora is my best friend. I'll do anything to get her back."